The moody, dimly lit footage began with a heavily armored Batman pulling off a tarp and turning on the Bat Signal on a rainy rooftop. With glowing eyes, the bulky Batman looked up to the sky to see a steely Superman — his heat vision just beginning to flare up — hovering within the light and looking down at the Dark Knight.

That was it.

"I couldn't be happier with the way everything is going," said Snyder, who said he came straight to San Diego from the set of the DC Comics adaptation. "Talent, sets, special effects — It's going amazingly well."

After the teaser, Snyder brought Batman and Superman actors Ben Affleck and Henry Cavill on stage, along with Gal Gadot, who will portray Wonder Woman in the film. On behemoth screens surrounding the audience, an image of Gadot in costume — complete with thigh-high boots and a sword in hand — was broadcast for the first time.

The actors stayed mum during their brief appearance, which drew roars from the crowd inside Hall H, the biggest venue at the San Diego Convention Center.

"Batman v Superman: Dawn of Justice," which was first unveiled at last year's Comic-Con, is set for release May 6, 2016.